Table 3.

Surveillance Cohort: 6 women with unresected DCIS. All women remain under active surveillance with regular clinical examination, MMG, and MRI. 5 of 6 women remain on endocrine therapy.

Study ID	Drug	Time to Surgery (mos)	Initial DCIS Grade	Surgical Recommendation at Presentation	Time on Hormone Therapy	# of Core Biopsies after Diagnosis	# of Core Biopsies with DCIS
3	Tamoxifen	43.3	Intermediate	Mastectomy	24	3	1
4	Tamoxifen	39.2	Low	Mastectomy	23.6	0	0
7	Tamoxifen	97.6	Intermediate/High	Mastectomy	80.6	6	3
8	Tamoxifen	52.1	Low	Mastectomy	1.4	0	0
13	Arimidex	94.7	Intermediate	Mastectomy	66.6	0	0
14	Letrozole	30	Intermediate	Lumpectomy	8.9	0	0